package com.clh.filter;

import java.io.IOException;
import javax.servlet.Filter;
import javax.servlet.FilterChain;
import javax.servlet.ServletException;
import javax.servlet.ServletRequest;
import javax.servlet.ServletResponse;
import javax.servlet.http.HttpServletRequest;
import javax.servlet.http.HttpServletResponse;
import javax.servlet.http.HttpSession;

import com.clh.entity.Admin;

public class AuthorityFilter implements Filter {

	@Override
	public void doFilter(ServletRequest req, ServletResponse resp, FilterChain chain)
			throws IOException, ServletException {
		HttpServletRequest request = (HttpServletRequest) req;
		HttpServletResponse response = (HttpServletResponse) resp;

		HttpSession session = request.getSession();
		Admin admin = (Admin) session.getAttribute("adminSession");

		if (admin != null) {
			chain.doFilter(req, resp);
		} else {
			response.sendRedirect(request.getContextPath() + "/back/login.jsp");
		}
	}

}
